Hunt & Live

Q&A · Off-Grid

What are Signs of Carbon Monoxide Poisoning?

April 5, 2026

Quick Answer

Signs of carbon monoxide poisoning include headache, dizziness, and nausea, which can progress to confusion, loss of consciousness, and even death if left untreated.

Recognizing the Signs of CO Poisoning

Carbon monoxide (CO) poisoning can be a silent killer, as it often produces no immediate warning signs. However, there are some common symptoms to watch out for, especially when using generators or other gas-powered equipment indoors. Headache is usually the first symptom, followed by dizziness, nausea, and fatigue. In severe cases, CO poisoning can cause confusion, loss of consciousness, and even death.

Safe Generator Use to Prevent CO Poisoning

To minimize the risk of CO poisoning when using generators, follow these guidelines:

  • Always use generators outdoors, away from windows, doors, and vents.
  • Place generators at least 20 feet away from any structure or opening to a building.
  • Position generators on a level, stable surface to prevent tipping or shifting.
  • Never use generators indoors, even in garages or sheds.
  • Regularly maintain and inspect generators to ensure proper functioning.

Monitoring CO Levels for Safety

If you suspect CO poisoning or are concerned about CO levels in your home or workspace, install a carbon monoxide detector. These devices can detect CO levels as low as 30 parts per million (ppm) and alert you to potential dangers. The National Institute for Occupational Safety and Health (NIOSH) recommends using CO detectors with digital displays that show CO levels in ppm, rather than analog devices with alarm thresholds.

generator-carbon-monoxide-safety signs carbon monoxide poisoning
Share

Find more answers

Browse the full Q&A library by topic, or jump back to the topic this question belongs to.